JPS5467646A - Tidal alteration time current setting control system - Google Patents

Tidal alteration time current setting control system

Info

Publication number
JPS5467646A
JPS5467646A JP13348077A JP13348077A JPS5467646A JP S5467646 A JPS5467646 A JP S5467646A JP 13348077 A JP13348077 A JP 13348077A JP 13348077 A JP13348077 A JP 13348077A JP S5467646 A JPS5467646 A JP S5467646A
Authority
JP
Japan
Prior art keywords
current
tidal
value
idpo
alteration
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP13348077A
Other languages
Japanese (ja)
Inventor
Noritoshi Fujii
Tadao Kawai
Atsumi Watanabe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13348077A priority Critical patent/JPS5467646A/en
Publication of JPS5467646A publication Critical patent/JPS5467646A/en
Pending legal-status Critical Current

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  • Supply And Distribution Of Alternating Current (AREA)

Abstract

PURPOSE: To switch temporarily current set value of degree for preventing interruption of DC current to output value of a current setting instrument for producing the current set value upon reception of a tidal alteration command by providing the instrument in the respective control circuits at both ends.
CONSTITUTION: When a tidal alteration changeover switch 10 is switched from a converter 2 to converter 2', one-shot multivibrators 18 and 16' operate for predetermined time to then close switches 15, 15'. Thus, set value Idpo is applied to maximum value selecting circuits 14, 14', respectively. Normal current and minimum current values determining set value Idpm is applied to the circuits 14, 14'. The value Rdpm is 10% of rated current value, and the value Idpo approx. 20%. Accordingly, if Idp≥Idpo, the current control at tidal alteration time is set by a current setting instrument 11. If Idp<Idpo, the tidal alteration time is so operated that the current set value Idpo has priority.
COPYRIGHT: (C)1979,JPO&Japio
JP13348077A 1977-11-09 1977-11-09 Tidal alteration time current setting control system Pending JPS5467646A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13348077A JPS5467646A (en) 1977-11-09 1977-11-09 Tidal alteration time current setting control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13348077A JPS5467646A (en) 1977-11-09 1977-11-09 Tidal alteration time current setting control system

Publications (1)

Publication Number Publication Date
JPS5467646A true JPS5467646A (en) 1979-05-31

Family

ID=15105750

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13348077A Pending JPS5467646A (en) 1977-11-09 1977-11-09 Tidal alteration time current setting control system

Country Status (1)

Country Link
JP (1) JPS5467646A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015194325A1 (en) * 2014-06-17 2015-12-23 株式会社 東芝 Power converter control device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015194325A1 (en) * 2014-06-17 2015-12-23 株式会社 東芝 Power converter control device

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